B - Operations – Transporting – 26 – D
Patent
B - Operations, Transporting
26
D
164/110
B26D 5/00 (2006.01) B23D 19/08 (2006.01) B23D 33/04 (2006.01)
Patent
CA 1112998
- 50 - SHEET METAL CUTTING DEVICE FOR ARCS AND CIRCLES ABSTRACT OF THE DISCLOSURE A self-contained sheet metal cutter is mounted on a wheeled dolly and includes upper and lower power driven shear cutting wheels between which is engaged the plate or sheet to be cut. An adjustable trammel assembly extends from the dolly and includes a centre point member engage- able with an aperture in the plate to be cut and which cor- responds to the centre of the arc or circle. The trammel is adjustable to the radius of the arc or circle and the centre point is engaged with the aperture in the sheet whereupon the wheeled dolly is pushed manually around the arc or circle as the shear wheels cut the sheet to the pre- set radius arc or circle. The rear wheel of the dolly is castor so that it follows the track readily and easily.
346325
Ade & Company
Isaac Dalton
LandOfFree
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